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<?php
declare(strict_types=1);
namespace Brick\Math\Exception;
/**
* Exception thrown when attempting to create a number from a string with an invalid format.
*/
class NumberFormatException extends MathException
{
/**
* @param string $char The failing character.
*
* @return NumberFormatException
*
* @psalm-pure
*/
public static function charNotInAlphabet(string $char) : self
{
$ord = \ord($char);
if ($ord < 32 || $ord > 126) {
$char = \strtoupper(\dechex($ord));
if ($ord < 10) {
$char = '0' . $char;
}
} else {
$char = '"' . $char . '"';
}
return new self(sprintf('Char %s is not a valid character in the given alphabet.', $char));
}
}